The earliest report for grasses from British India was made by Hooker (1896). He described 146 genera and 845 species of grasses in the flora of British India.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/addition-grass-flora-gujarat-state
[2] http://admin.indiaenvironmentportal.org.in/category/author/rinku-j-desai
[3] http://admin.indiaenvironmentportal.org.in/category/author/vinay-m-raole
[4] http://admin.indiaenvironmentportal.org.in/category/journal/indian-forester-0
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/grasses
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/flora
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gujarat
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/minor-forest-produce